net.sf.appinfo.reader
Class JarManifestReader

java.lang.Object
  net.sf.appinfo.reader.AbstractManifestReader
      net.sf.appinfo.reader.JarManifestReader

All Implemented Interfaces:

ManifestReader

public class JarManifestReader
extends AbstractManifestReader

ManifestReader implementation getting manifest from a JAR file. Proper JAR is pointed by a class places within an archive.

Author:

Marcin Zajączkowski, 2010-07-01

Constructor Summary

JarManifestReader()
Uses itself (this) as a class in JAR which manifest file will be looked for.

JarManifestReader(Class<?> classFromJar)
Uses given class as a class in JAR which manifest file will be looked for.

Method Summary

protected Manifest

initializeAndReturnManifest() Delegated initialization (and return of) Manifest object.

Methods inherited from class net.sf.appinfo.reader.AbstractManifestReader

getManifest

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JarManifestReader

public JarManifestReader()

Uses itself (this) as a class in JAR which manifest file will be looked for.

JarManifestReader

public JarManifestReader(Class<?> classFromJar)

Uses given class as a class in JAR which manifest file will be looked for.

Parameters:

classFromJar - class from JAR

Method Detail

initializeAndReturnManifest

protected Manifest initializeAndReturnManifest()
                                        throws ReaderInitializationException,
                                               IOException

Description copied from class: AbstractManifestReader

Delegated initialization (and return of) Manifest object. Should be implemented in concreate classes which create Manifest from data in file, JAR, etc. Throwing IOException isn't very pretty, but it allows to remove duplication and move conversion IOException to ReaderInitializationException to a superclass. It's only internal method in ManifestReader hierarchy and doesn't complicate cooperation with other classes.

Specified by:

initializeAndReturnManifest in class AbstractManifestReader

Returns:

initialized Manifest object

Throws:

ReaderInitializationException - other (no IO) error during Manifest initialization

IOException - error during Manifest initialization